Which food has less impact on blood sugar?

ROMAINE LETTUCE, CAESAR DRESSING (WATER, CANOLA OIL, DISTILLED VINEGAR, DIJON MUSTARD [WATER, MUSTARD SEED, DISTILLED VINEGAR, SALT, WHITE WINE, CITRIC ACID, TURMERIC, TARTARIC ACID, SPICES], MODIFIED CORN STARCH, DRIED GARLIC, SUGAR, PARMESAN CHEESE FLAVOR [GRANULAR AND PARMESAN CHEESE {MILK, CULTURE, SALT, ENZYMES}, WATER, SALT, LACTIC ACID, CITRIC ACID], EGG YOLK, NATURAL FLAVORS, LEMON JUICE CONCENTRATE, SALT, MUSTARD FLOUR, SKIM MILK POWDER BLEND [DAIRY WHEY, SODIUM CASEINATE, SKIM MILK POWDER], SPICES, ACACIA GUM, XANTHAN GUM, SODIUM CITRATE, CARRAGEENAN GUM, CARAMEL COLOR), CHICKEN BREAST (BONELESS CHICKEN BREAST, WATER, CONTAINS 2% OR LESS OF THE FOLLOWING: SOY PROTEIN CONCENTRATE, SODIUM LACTATE, SALT, MODIFIED CORN STARCH, CARRAGEENAN, SODIUM PHOSPHATE [PRESERVATIVE]), CROUTONS (ENRICHED FLOUR [WHEAT FLOUR, MALTED BARLEY FLOUR, NIACIN, REDUCED IRON, THIAMINE MONONITRATE, RIBOFLAVIN, FOLIC ACID], CANOLA AND/OR SUNFLOWER OIL, WHEY, SALT, YEAST, 2% OR LESS OF HIGH FRUCTOSE CORN SYRUP, DEHYDRATED PARSLEY, GARLIC POWDER, CALCIUM PROPIONATE [PRESERVATIVE], NATURAL AND ARTIFICIAL FLAVOR, PARMESAN CHEESE AND ENZYME MODIFIED CHEESE [PASTEURIZED MILK, CHEESE CULTURES, SALT, ENZYMES], CULTURED NONFAT MILK, ANNATTO [COLOR], EXTRACTIVES OF TURMERIC AND PAPRIKA [COLOR], ENZYMES, ASCORBIC ACID, TBHQ [TO PRESERVE FRESHNESS]), PARMESAN CHEESE (PASTEURIZED MILK, CHEESE CULTURE, SALT, POTATO STARCH [TO PREVENT CAKING], POWDERED CELLULOSE [TO PREVENT CAKING], ENZYMES, NATAMYCIN [A NATURAL MOLD INHIBITOR]).